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imagegammacorrect

(PHP 3 >= 3.0.13, PHP 4, PHP 5)

imagegammacorrect -- 对 GD 图像应用 gamma 修正

说明

int imagegammacorrect ( resource image, float inputgamma, float outputgamma )

imagegammacorrect() 函数用给定的输入 gamma 值 inputgamma 和输出 gamma 值 outputgamma 对一幅 GD 图像流（image）应用 gamma 修正。

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Last updated: Thu Jul 7 19:13:47 2005 CST